145126561615 has 64 divisors (see below), whose sum is σ = 220552243200. Its totient is φ = 89379569664.

The previous prime is 145126561519. The next prime is 145126561651. The reversal of 145126561615 is 516165621541.

It is not a de Polignac number, because 145126561615 - 2²³ = 145118173007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1686351 + ... + 1770319.

It is an arithmetic number, because the mean of its divisors is an integer number (3446128800).

Almost surely, 2^145126561615 is an apocalyptic number.

145126561615 is a deficient number, since it is larger than the sum of its proper divisors (75425681585).

145126561615 is a wasteful number, since it uses less digits than its factorization.

145126561615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84136.

The product of its digits is 216000, while the sum is 43.

The spelling of 145126561615 in words is "one hundred forty-five billion, one hundred twenty-six million, five hundred sixty-one thousand, six hundred fifteen".